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3 years ago

10

At a local preschool there is a ratio of 3 boys to every 4 girls. If there are 245 total preschoolers enrolled then how many are

boys

1 answer:

hichkok12 [17]3 years ago

3 0

Answer:

105 boys

Step-by-step explanation:

At a local preschool there is a ratio of 3 boys to 4 girls.

i.e boys:girls = 3:4

There are 245 preschoolers enrolled.

Number of boys = $\frac{3}{7}$ × 245 = 105 boys

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Read 2 more answers

The point slope form of the eqaution of the line that passes through (-5,-1) and (10, -7) is y+7= -2/5 (x - 10) what is the stan

stira [4]

Answer:

<h2>2x + 5y = -15</h2>

Step-by-step explanation:

The standard form of an equation of a line:

$Ax+By=C$

We have the equation in point-slope form:

$y+7=-\dfrac{2}{5}(x-10)$

Convert it to the standard form:

$y+7=-\dfrac{2}{5}(x-10)$ <em>multiply both sides by 5</em>

$5y+35=-2(x-10)$ <em>use the distributive property </em><em>a(b + c) = ab + ac</em>

$5y+35=(-2)(x)+(-2)(-10)$

$5y+35=-2x+20$ <em>subtract 35 from both sides</em>

$5y=-2x-15$ <em>add 2x to both sides</em>

$2x+5y=-15$

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3 years ago